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Betekhtinite

Type Locality
Ernst Thälmann Shaft (Vitzthum Shaft), Hübitz, Siersleben, Mansfeld Basin, Saxony-Anhalt, Germany
Mineral Data
(Cu,Fe)21Pb2S15
Strunz: 
2.BE.05
Physical Properties
Colour: 
Black
Crystal System: 
Orthorhombic
Streak: 
Black
Hardness: 
3.0 - 3.5
Photos